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Finding the Fourth Proportional to 79,812.37, 119,735.88 and 39,852.85

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Solution

The fourth proportional to 79,812.37, 119,735.88 and 39,852.85 is: 59,787.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,812.37 : 119,735.88 = 39,852.85 : x
  2. Step 2: Convert to fraction form
    79,812.37/119,735.88 = 39,852.85/x
  3. Step 3: Cross multiply
    79,812.37x = 119,735.88 × 39,852.85
  4. Step 4: Simplify right side
    79,812.37x = 4,771,816,065.26
  5. Step 5: Solve for x
    x = 4,771,816,065.26/79,812.37
  6. Step 6: Final answer
    x = 59,787.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.